Clathrin- and caveolin-1-independent endocytosis: entry of simian virus 40 into cells devoid of caveolae.
Clathrin- and caveolin-1-independent endocytosis: entry of simian virus 40 into cells devoid of caveolae.
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网格蛋白和小窝蛋白-1独立的内吞作用:将猿猴病毒40进入没有小窝的细胞中。
DOI:
10.1083/jcb.200407113
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发表时间:
2005-01-31
期刊:
影响因子:
--
通讯作者:
Helenius A
中科院分区:
文献类型:
--
作者:
Damm EM;Pelkmans L;Kartenbeck J;Mezzacasa A;Kurzchalia T;Helenius A
Simian Virus 40 (SV40) has been shown to enter host cells by caveolar endocytosis followed by transport via caveosomes to the endoplasmic reticulum (ER). Using a caveolin-1 (cav-1)–deficient cell line (human hepatoma 7) and embryonic fibroblasts from a cav-1 knockout mouse, we found that in the absence of caveolae, but also in wild-type embryonic fibroblasts, the virus exploits an alternative, cav-1–independent pathway. Internalization was rapid (t 1/2 = 20 min) and cholesterol and tyrosine kinase dependent but independent of clathrin, dynamin II, and ARF6. The viruses were internalized in small, tight-fitting vesicles and transported to membrane-bounded, pH-neutral organelles similar to caveosomes but devoid of cav-1 and -2. The viruses were next transferred by microtubule-dependent vesicular transport to the ER, a step that was required for infectivity. Our results revealed the existence of a virus-activated endocytic pathway from the plasma membrane to the ER that involves neither clathrin nor caveolae and that can be activated also in the presence of cav-1.
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DOI:
10.1083/jcb.200302028
发表时间:
2003-05-26
期刊:
The Journal of cell biology
影响因子:
--
作者:
Nabi IR;Le PU
通讯作者:
Le PU
DOI:
10.1073/pnas.92.19.8655
发表时间:
1995-09-12
影响因子:
11.1
作者:
FRA, AM;WILLIAMSON, E;PARTON, RG
通讯作者:
PARTON, RG
影响因子:
21.3
作者:
Nichols, BJ
通讯作者:
Nichols, BJ
影响因子:
7.8
作者:
Kartenbeck, J;Stukenbrok, H;Helenius, A
通讯作者:
Helenius, A
影响因子:
56.9
作者:
Drab, M;Verkade, P;Kurzchalia, TV
通讯作者:
Kurzchalia, TV